Search results for "Functions"
showing 10 items of 1066 documents
Properties and functions of myeloperoxidase and its role in ovarian cancer
2022
Background: Elevated levels of myeloperoxidase in body fluids are increasingly being used as an indicator for the diagnosis of cancer. Aim of the study: The aim of this study was to review the literature on the physical and chemical properties of myeloperoxidase, its role in carcinogenesis, the role of tumor-associated neutrophils in cancer, and the role of myeloperoxidase in ovarian cancer. Material and methods: The research literature published between January 1999 and December 2019 was reviewed. The properties and role of myeloperoxidase in the development of ovarian cancer were selected from publications available in selected online databases, including MEDLINE, PubMed, Scopus, and Web …
Learning the concept of family of functions through the modelling process using tablets
2015
International audience; In this study, we present a teaching situation to work on the modelling process using real data taken in classroom with tablets. The situation allowed us to work on the concept of the quadratic function with a group of 11th grade students and take into account the hypothesis that the qualitative analysis of the phenomenon, the knowledge of the qualitative properties of the families of functions and the meaning of the parameters are crucial elements for the management and control of the modelling process. We observed they are key elements to choose the function used as a model and to check its adequacy throughout the modelling process. Some student's conceptions on he…
Music in Gambling Contexts : What are Individuals' Perceptions of Music Experienced in Gambring Contexts & Why Do Individuals Self-Select Music to Ac…
2013
Music influences behaviours in everyday contexts (North & Hargreaves, 2008) and is a factor which can influence gambling behaviour (Griffiths & Parke, 2005; 2003). Experimenter-selected background music has been found to influence indices of gambling behaviour in laboratory gambling experiments (e.g. Spenwyn, Barrett & Griffiths, 2010; Noseworthy & Finlay, 2009; Dixon, Trigg & Griffiths, 2007; Marmurek et al., 2007). However, less is known about gamblers’ experience of music in real-life gambling contexts. To date research has considered music’s utilisation in gambling environments where fruit machines are located (Griffiths & Parke, 2005). Therefore further research is required to determin…
The anthropogenic sealing of soils in urban areas
2009
The sealing of soils by impervious materials is, normally, detrimental to its ecological functions. Exchanges of energy, water and gases are restricted or hampered and an increasing pressure is being exerted on adjacent, non sealed areas. The negative effects span from loss of plant production and natural habitats to increased floods, pollution, and health risks and consequently higher social costs. Environmental Agencies produce periodical reports where the phenomenon of soil consumption by urban infrastructures is monitored with extremely sophisticated geographical tools but little specific research is available that describes the effects of soil sealing. This paper reviews some recent co…
A pedotransfer function for estimating the soil erodibility factor in Sicily
2009
The soil erodibility factor, K, of the Universal Soil Loss Equation (USLE) is a simple descriptor of the soil susceptibility to rill and interrill erosion. The original procedure for determining K needs a knowledge of soil particle size distribution (PSD), soil organic matter, OM, content, and soil structure and permeability characteristics. However, OM data are often missing and soil structure and permeability are not easily evaluated in regional analyses. The objective of this investigation was to develop a pedotransfer function (PTF) for estimating the K factor of the USLE in Sicily (south Italy) using only soil textural data. The nomograph soil erodibility factor and its associated firs…
1,4 dihidropiridinski derivati povećavaju ekspresiju gena Psma3, Psmb5 i Psmc6 u glasničkoj RNA štakora
2021
The ubiquitin-proteasome system modifies different cellular and protein functions. Its dysregulation may lead to disrupted proteostasis associated with multiple pathologies and aging. Pharmacological regulation of proteasome functions is already an important part of the treatment of several diseases. 1,4-dihydropyridine (1,4-DHP) derivatives possess different pharmacological activities, including antiaging and neuroprotective. The aim of this study was to investigate the effects of several 1,4-DHP derivatives on mRNA expression levels of proteasomal genes Psma3, Psmb5, and Psmc6 in several organs of rats. Rats were treated with metcarbatone, etcarbatone, glutapyrone, styrylcarbatone, AV-153…
Granica państwa jako kategoria wielowymiarowa
2013
Istnienie granic państwowych wynika przede wszystkim z przypisania państwom terytorium, a także z właściwego wspólnotom ludzkim instynktu terytorialności. Granica państwa, wyznaczając położenie geograficzne terytorium, określa nie tylko obszar państwa, ale spełnia również określone funkcje, które w podstawowym wymiarze mają charakter wewnętrzny i zewnętrzny. Mimo że na wielu obszarach granice zachowały tradycyjną funkcję bariery, współczesne granice nie funkcjonują już w ten sam sposób, jak jeszcze w niedalekiej przeszłości. W warunkach globalizacji kultury oraz internacjonalizacji polityki i gospodarki nastąpiło otwarcie granic i związane z tym osłabienie kontroli granicznej, stanowiącej d…
Mur berliński jako granica i linia frontu w czasach zimnej wojny
2018
Celem artykułu jest prezentacja okoliczności budowy, a następnie funkcji pełnionych w czasach zimnej wojny przez mur berliński. Mur został wzniesiony w 1961 r. i stanowił efekt kulminacji konfliktu między ZSRR i aliantami zachodnimi. Władzom w NRD zależało na jego budowie, aby zatrzymać emigrację ludności z Niemiec Wschodnich do Berlina Zachodniego, a następnie do RFN. Po 2015 r. na granicach wielu państw europejskich także budowane są mury, mające uniemożliwić wjazd imigrantów, szczególnie nielegalnych. W tym kontekście warto przyjrzeć się funkcjom pełnionym przez mur berliński, w tym funkcji: politycznej, strategicznej, ekonomicznej, społecznej, symbolicznej i kulturotwórczej. Na podstawi…
Spatially dependent parton distribution functions and hard processes in nuclear collisions
2014
Spatiocolorimetric neighborhood hypergraph and Image Processing Applications : Noise Removal and Edge Detection.
2004
In this document, we are interested in image modeling by the means of the hypergraph theory. Our contribution is essentially centered on the determination of the properties resulting from this theory and on the analysis from their adequacy with image problems, particularly edge and noise detection.First, we study the image spatiocolorimetric neighborhood hypergraph representation. Three representations are respectively presented incorporating global properties, local properties and similarity functions. Then, we use the hypergraph properties generated by the representation in order to define the structural models of noise and edge. This enables us to deduce the algorithms of noise suppressi…